Home / 399,716.02-551,639.57-227,641.27

Finding the Fourth Proportional to 399,716.02, 551,639.57 and 227,641.27

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Solution

The fourth proportional to 399,716.02, 551,639.57 and 227,641.27 is: 314,162.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,716.02 : 551,639.57 = 227,641.27 : x
  2. Step 2: Convert to fraction form
    399,716.02/551,639.57 = 227,641.27/x
  3. Step 3: Cross multiply
    399,716.02x = 551,639.57 × 227,641.27
  4. Step 4: Simplify right side
    399,716.02x = 125,575,931,158.85
  5. Step 5: Solve for x
    x = 125,575,931,158.85/399,716.02
  6. Step 6: Final answer
    x = 314,162.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.